Welding seal adhesive tape and preparation method thereof

A welding sealing and tape technology, applied in the direction of adhesives, film/sheet adhesives, etc., can solve problems such as inconvenient operation, and achieve the effect of solving inconvenient operation, protecting the bonding effect and ensuring the welding effect.

Inactive Publication Date: 2017-10-27
ZEPHYROS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The welding sealing tape currently on the market must add conductive particles to the tape to be able to perform spot welding on the overlapping parts of the workpiece, and in order to ensure the bonding effect, the surface of the welding sealing tape is relatively sticky, so it is inconvenient to operate

Method used

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  • Welding seal adhesive tape and preparation method thereof
  • Welding seal adhesive tape and preparation method thereof

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Experimental program
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Effect test

preparation example Construction

[0031] The present invention also provides a method for preparing the welding sealing tape according to the present invention, comprising the following steps:

[0032] Extrude the raw materials of the base layer, spray hot-melt glue on the surface of the base layer in situ, and cool down to obtain the welding sealing tape.

[0033] Among them, the pressure of the nozzle when spraying hot melt adhesive wire is 2.5-4.5kgf / cm 2 .

Embodiment 1

[0037] Use ethylene-vinyl acetate copolymer (EVA) as the base material, extrude EVA into a 1.5mm thick sheet at 110°C, and spray EVA hot-melt glue online at 160°C, where the nozzle pressure is 3.5kgf / cm 2 , Welding sealing tape was obtained after cooling, and the test results are listed in Table 1.

Embodiment 2

[0039] Use EPDM as the base material, extrude EPDM into a 1.3mm thick sheet at 110°C, spray EVA hot-melt glue online at 160°C, and the nozzle pressure is 3.5kgf / cm 2 , Welding sealing tape was obtained after cooling, and the test results are listed in Table 1.

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Abstract

The invention relates to a welding seal adhesive tape and a preparation method thereof. The welding seal adhesive tape comprises a basic layer and a hot melt adhesive layer, the hot melt adhesive layer is sprayed on the basic layer, and the hot melt adhesive layer has a net-shaped structure which is formed by hot melt adhesive wires. The welding seal adhesive tape can solve surface treatment problems of sticky welding adhesive tapes, protect the adhesive effects between the welding adhesive tape and adhered surfaces, and solve the problem that operation of the adhesive surface is inconvenient, and meanwhile, the welding seal adhesive tape furthest guarantees the welding effects of adhered metals.

Description

technical field [0001] The invention relates to a welding sealing tape and a preparation method thereof. The welding sealing tape has a hot-melt adhesive layer and belongs to the technical field of welding sealing tapes. Background technique [0002] With the development of industrial technology, especially the rapid development of the automobile industry, the traditional welding process can no longer meet the large-scale industrial production of modern assembly lines. At present, many automobile manufacturers have adopted the welding process, especially the spot welding process to form the body, which greatly improves the production efficiency, but the skin overlap between adjacent welding points needs to be well sealed to prevent rain and dust from entering. At the same time, it is also the need for heat insulation and sealing of air-conditioned vehicles. [0003] Welding sealing tape is mainly used for spot welding of various cars, doors, engine covers, roofs and trunks....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J123/08C09J7/20
CPCC09J123/0853C09J2423/166C09J2423/046C09J2423/04C09J2301/204C09J2301/122C09J2301/304C09J2301/414C09J2431/00C09J2431/006C09J7/20C09J2301/202
Inventor 朱琦刘颖春丹尼·彼德
Owner ZEPHYROS INC
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